Calypso BTS: my phone my phone doesn't see my base station
laforge at gnumonks.org
Wed Dec 14 00:00:32 UTC 2016
On Tue, Dec 13, 2016 at 11:26:05AM -0700, phreaker1983 wrote:
> hi guys, my phone doesn't see my base station.. To start I used :
How strong is your signal? The initial sync of OsmocomBB is (as far as
I remmber) setting the AGC to an expected signal level of -85 dBm. If
"your base station" (I assume it is not a public network, but a base
station you have on your desk / in your lab) is next to your phone, you
might have -45dBM or even more. This will clip the signal.
Unfortunately in all the 6 years of OsmocomBB, nobody voluntered to
address any of those long-standing issues or lacking features. It
continues to sadden me that despite all the efforts that people like
Dieter, Andreas, Sylvain and I have put into implementing the first >=
80%, the rest of the community and user base has not managed to address
those remaining parts. The AGC handling for initial sync is one part,
and the re-sync to neighbor cells (as requirement for hand-over) is
another of those key parts.
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
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